<!doctype html>
<html>
  <head>
    <title>PGlite Live Query Example</title>
    <link rel="stylesheet" href="./styles.css" />
    <script src="./utils.js"></script>
    <script type="importmap">
      {
        "imports": {
          "@electric-sql/pglite": "../dist/index.js",
          "@electric-sql/pglite/live": "../dist/live/index.js"
        }
      }
    </script>
    <style>
      #output {
        font-family: monospace;
        overflow: auto;
        max-height: 250px;
        border: 1px solid #eee;
        border-radius: 0.5rem;
        padding: 10px;
        margin: 1rem 0;
        font-size: 9px;
        line-height: 11px;
      }
      button {
        margin: 0 0.5rem 0 0;
      }
    </style>
  </head>
<body>
<h1>PGlite Live Query Example</h1>
<button id="start">start</button><button id="add" disabled>Add</button>
<div id="output"></div>
<div class="script-plus-log">
<script type="module">
import { PGlite } from "@electric-sql/pglite";
import { live } from "@electric-sql/pglite/live";

const output = document.getElementById("output");
const startBtn = document.getElementById("start");
const addBtn = document.getElementById("add");
let counter = 1000;
let lastClicked = 0;
const nameLength = 10000;
const nameSuffix = "-".repeat(nameLength);

const pg = new PGlite({
  extensions: {
    live,
  },
});
window.pg = pg;

console.log("Creating table...");

await pg.exec(`
  CREATE TABLE IF NOT EXISTS test (
    id SERIAL PRIMARY KEY,
    rand FLOAT,
    name TEXT
  );
  INSERT INTO test (name, rand)
  SELECT 'test' || i || '${nameSuffix}', random()
  FROM generate_series(1, ${counter}) AS i;
`);

console.log("Ready!");

startBtn.addEventListener("click", async () => {
  lastClicked = performance.now();
  startBtn.disabled = true;
  addBtn.disabled = false;
  pg.live.query("SELECT * FROM test ORDER BY rand;", null, (res) => {
    const time = performance.now() - lastClicked;
    console.log(`Update took ${time}ms`);
    output.textContent = res.rows.map((row) => row.id).join(", ");
  });
});

addBtn.addEventListener("click", async () => {
  lastClicked = performance.now();
  await pg.query(
    "INSERT INTO test (name, rand) VALUES ($1, random());",
    [`test${++counter}${nameSuffix}`]
  );
});
</script>
<div id="log"></div>
</div>
</body>
</html>
